Machine for automatically making paper packets.



0. HESSER.

MACHINE FOR AUTOMATICALLY MAKING PAPER PAOKETE,

APPLICATION FILED MAY 6, 1009.

1,020,821, 4 Patented Mar.19, 1912.

6 SHEETS-SHEET 1.

O. HESSER.

MAGHINE FOR AUTOMATICALLY MAKING PAPER PACKETS.

APPLICATION FILED MAY 6, 1909.

Patented Mar. 19, 1912.

6 SHEETS-SHEET 2.

0. HESSER.

MACHINE FOR AUTOMATICALLY MAKING PAPER PACKETS.

' APPLICATION FILED MAY 6, 1999. 1,020,821 Patented Mar. 19, 1912.

6 BHEETB-SEEET 3.

' O. HBSSBR.

MACHINE FOR AUTOMATICALLY MAKING PAPER PACKETS.

APPLICATION FILED MAY 6, 1909.

Patented Mar. 19, 1912.

- 6 BHEETBSHEET 4.

l v .90 ll I 4 ,7 I I 2 o 92 5 15g 56 t, 13 5' I6 (/4 V0 7 a [Z i l 7 0 2 El 7/ A E) o O 74 O o 75 i 6 o 5 O. HESSER.

MACHINE FOR AUTOMATICALLY MAKING PAPER PACKETS.

APPLICATION FILED MAY 6, 1909.

1,020,821 Patented Mar. 19, 1912.

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I 0. HBSSER. MACHINE FOR AUTOMATICALLY MAKING PAPER PAOKET8.

APPLICATION FILED MAY 6, 1009.

1,020,821, Patented Mar. 19, 1912.

6 SHEETS-SHEET 6.

F L j- I J r .FW'ZJ, ;9ZZ.

Je 5. 62242. 2 .22 0i. w M- fl 5 'i L OTTO HESSER, OF STUTTGART-CANNSTATT, GERMANY.

MACHINE FOR AUTOMATICALLY MAKING PAPER PACKETS.

Specification of Letters Patent.

Patented Mar. 19, 1912.

Application filed May 6, 1909. Serial No. 494,895.

To all whom it may concern I Be it known that I, OTTo HESSER, a citizen of the German. Empire, residing at Stuttgart-Cannstatt, in the Kingdom of Wurttemberg, Empire of Germany, have invented certain new and useful Improvements in Machines for Automatically Making Paper Packets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the .art to which it appertains to make and use the same.

This invention relates to a machine by means of which paper packets with one end open may be automatically made, and in this machine in particular so-called double packets are made, that is to say packets which consist of two packets inserted one in another. In the improved machine two fiat sheets lying in separate piles are formed quite automatically into the finished packet. I In this machine one sheet is first folded at the different stations over a folding mandrel of suitable form into packet form, and then over this packet, while still on the folding mandrel, a second sheet is folded in V the same manner, whereupon when the whole packet is finished it is automatically removed from the mandrel and delivered from the machine.

Preferably a thick paper, such as cardboard or the like, is employed for the inner packet, which must necessarily be somewhat creased at the bends.

One form of construction of the invention will now be more particularly described as an example, with reference to the accompanying drawings, in which v Figure 1 is a plan view of the whole machine; Fig. 2, a side view of the sheet-feeding device; Figs. 3, 4 and 5 are views of the pile of sheets, with a device for preventing several sheets being lifted at the same time; Fig. 6 is an end view and partialsection of the means for temporarily covering the pasting roller; Fig. 7 is a side view of the paper a side view of the devices for ejecting the finished packet; Fig. 18 is a sectional plan view of the operating shaft; Fig. 19 is a side view of the mechanism for raising, and lowering the pressing device; Fig. 20 is a diagrammatic plan view of the arrangement of the difl'erent stations and the devices provided at them; while, F igs.-2124 show the forming of the first paper sheet into the inner packet, and in similar manner :Figs. 25428 show the formation of the second packet.

The entire machine is operated from a sin' gle driving gear 1 which is mounted in the machine frame 2 with a table 3 and operates the separate mechanism of the im-- proved machine by means of shafts 4, 5 and 6.

The sheets a and b are piled independently at the stations I and I (Figs. 1 and 20), sheet a being formed into an inner packet, while sheet I) in exactly similar manner is formed into the outer packet. Consequently only one of the operations will be described and the corresponding parts of the devices for the other sheet, are provided with an index numeral.

The sheets a lie in a pile g, which is automatically adjusted as the sheets are used by a shifting mechanism hereinafter described. Pasting members 12 are also pro vided for applying the paste and for conveying the sheets a, the arrangement and form of which members correspond to the object for which the sheets are to be used and in the construction shown the members are arranged at right angles to one another (Fig. 1). These pasting members 12 execute a double movementa vertical and a horizontal one. In the vertical movement the pasting member is pressed down on the topmost sheet a of the pile g, and the sheet a on the return of the pasting member 12 is lifted ofl the pile g and then conveyed by the horizontal movement toa conveyer carriage 13 at the II station (Figs. 1 and 7), on which carriage the paper sheet is retained by wipers or strippers 14 when the past-ing member 12 is again moved to the pile g.

The pasting member 12 is carried by a carriage 32, which is displaceable along a horizontal bar 33. This bar 33 is in turn carried by a carriage 30, which travels on a vertical bar 31 (Figs. 1 and 2).

The vertical movement and the lifting of a twoarmed lever 26, pivoted on a pin 27 on the frame 2, and a link bar 28, to the carriage 30, the return movement being effected, for instance, by a weight 29 or the like. The horizontal movement of the asting member 12. and the carriage 32 a ong the bar 33 is efiected' by means of a cam 38 mounted on the shaft 4, the carriage 32 I being reciprocated by means of aibell crank,

lever 35 and link bar 34. i

The aste is supplied to the pasting mem'-' ber 12 y" means of apasting apparatus 16, through the intermediary of a continuously rotating pasting'roller 17, driven from the shaft 6 by means of a belt or the like. The

pasting member 12 in its course to the pile g rubs directly over the pasting roller; 17 and is thereby provided w1th paste. In its subsequent return movement to the paper 'carriage 13, the pasting member 12 carries withiit the uppermost paper, sheet a adhering to it,-a nd thus carries it above the pasting roller 17. In order, however, to prevent any contact of the depending sheet a with the pasting ro1ler, the latter .is covered at a given moment. For this ob-' ject a special covering. bar or shield 18 is provided, which rocks on the axis 19 of the pasting roller 17. A. cam 21 is provided on the shaft 6 for operating this bar 18, which cam rocks the bar. 18 to and fro by means of an eccentric rod 22 and lever arm20.

In order to preventmore than one sheet a being removed from'the pile g at the same time, s ring tongues 23 or the like are provided Figs. 3-5) which are preferably cut obliquely, the owermost tongues 23 if necessary engaging only slightly over the olubly arranged on a set screw 25,011 the sheet, while the upper ones engage farther, so that the surplus sheets are detained. These tongues 23 are pivotally mounted, in order to' allow of their beingmore conveniently adjusted, their holders 24 being revrelease of which the adjustment may be effected as is required by the actual condition of the sheets.

In order to enable, the pile g, which rests on a plate 7 and between guides 8, to be adjusted vertically as the sheets are used up, a ratchetdevice is provided. This consists of a toothed wheel, gearing with a .rackbar 9. which carries the pile g and the plate 7. ()n the shaft of this toothed wheel a ratchet disk 10 is fixed with which a pawl 39 engages, which is periodically moved forward by means of a bell crank lever 40 pivoted at 41. This bell crank lever 40 is controlled by'a pin 42, which is displaceably mounted in the slotof a projectlon 43 of the link bar 28. When the link bar is mounted on the shaft fling member 12 returns (Fig. 2).

moves the lever 40 is more or less turned. and thereby the ratchet wheel 10 moved forward. In order to be ableto move the pile 9 up and down independently of the shifting e vice, a hand wheel 11 or the like,

wheel 10.

When the aper sheet a is brought by the pasting mem er 12 above the carriage 13 at. the II station, it is retained on the carriage 13 by wipers or strippers 14, while the past- These wipers 14 are mounted on a common ban 44, which slides vertically in a guide 45, and is moved up and down by means of a of the ratchet cam 48 on the shaft 4.by means of a push bar 49 and a lever 46 pivoted on a pin 47 Catches51 are provided on the carriage 13, which engage behind the" sheet a and con-' vey it to the III station. The carriage 13 itself is also carried in bars and is moved forward by an arm 52 pivoted at 53 7) and is moved'to and fro by a cam: 54

from the shaft 5 by means of a rod 55.

The forming of the fiatsheet of paper a into the finished packetis done as usual'by means of a mandrel 56, which is-fixed on a I periodically rotating vertical shaft 57 (Fig.

8). This mandrel 356 works in conjunction with a folding box 58 whichcan rise and fall and the inside form of which corresponds to the form of the mandrel. After the sheet has reached the III station 'it rests on the folding box 58 which is closed by a plate 59 which can be pressed inward." For this-purpose the plate 59 is guided at one end by a pin 60 (Fig. 12) and at the other end is attached to a bar 61 which is under theaction of a spring 62, which tends to press it upward. On, a mandrel. 56 entering thebox the plate 59 is then pressed inward, while the bar 61 slides in a socket of sleeve 63.

When the-sheet a has reached the folding box 58 (Figs. 9-11), it is raised-until the mandrel 56 lying above it; has entirely en tered thev folding box 58 (Fig. '10) By this means the sheeta is folded around the mandrel 56corresponding to the original posi' tion of the sheet in such a way that one of the projecting e'nds'c of the sheet wris longer I than the other I ro'ecting end? so that in the subsequent oldlng over,the .lbii 'gitudi nal seam-d lies at the sideasis usually the case in such packets (Fig. 23). This lifting of the folding box 58 is effected by the drivlng shaft 4 for instance by means-of a double eccentric 64 mounted thereon, which raises and lowers the folding box 58 by means of a bell crank lever 65 pivoted at 66 and a link 68, guide 69, 70 and a bar 71 guided in a sleeve 72.

For folding the projecting ends 0 of the sheet over the mandrel 56, so-called longitudinal folders 73 and 7.4 (Fig. 1) are employed which are mounted on the folding box 58 in sucha way as to be directly displaceable and preferably on the table-top like upper side of said box. These folders 5 73 and 74 are reciprocated by the shafts 4 and 6, which may be done, for instance, by means of cams 75 and 76, which reciprocate the longitudinal folders '73 and 74 in the desired manner by means of eccentric rods 77 and 78, bell crank levers 79 and 80, pivoted on pins .81 and 82 and links 83 and 84. These folders are formed as slides and may for this object be provided with guide bars 85 and 86.

In the packet 12 shown in Figs. and 22, the folder 74 first moves forward, when the folding box 58 has reached its highest position, and bends down one end 0, and the folder 73 is then pushed forward, and folds over the other end 0 which then overlaps the end, after which the previously raised ordinary pressing die 87 descends in the Well known manner and firmly presses the seam d which has been previously provided with. paste, whereupon the slides 73 and 74 again move back. When the folding box 58 is lifted, the longitudinal folders 73 and 74 must not be displaced but must remain in their original position of readiness. For this object the cams 75 and 76 are of such a shape that the folders 73 and 74 are pushed forward to a certain extent corresponding to therise of the folding box 58, but in reality remain stationary in their place until the bell crank levers 79 and 80 have suitably turned. The same applies also when the folding box descends.

In order to press the dies or stamp... 87 down onv the lon itudinal fold d, they are pivotally carried y 'arms 89, which in turn pivot on pins 90 and are pressed downward by springs 91. Each pin 90 is mounted on a disk 88 which also carries the mandrel 56 and is fixed on the shaft 57. A sleeve 93 is also provided on this shaft57 for lowering the pressing stamp 87, which sleeve is provided with pressingarms 94 (Figs. 8 and 19). Now if at a glven moment this sliding sleeve 93 be lowered, the arms 94 encounter the rear ends 92 of the levers 89 and the stamp 87 is thereby lifted off ,the seam d. This lowering is effected from the shaft 4 by means of a cam 100, which causes a lever 96 to rock by means of a push rod 99. said The lever engages with its free forked end, which is formed as a roller, between projections 95 of a slide. piece 93, so that the latter, when the 1ever'96 is moved, is pushed up and down.

When the sheet a is folded into a tube the shaft 57 is periodically turned through 90, whereby each mandrel comesv to the next station, that is to say the tube just formed reaches station V. This moving forward "lever being pivoted at 97 on an arm 98.

of the shaft 57 is effected by means of a separate shifting device (Fig. 13). This consists of a disk 161, which is mounted on the shaft 57 and has recesses 162 which serve for moving forward and stopping the disk 161. An arm 165 which is loosely revoluble on the shaft 57 is provided for moving the disk forward, which arm has a pawl 166 which is adapted to engage in the recess 162. This pawl 166 is under the action of a spring 167 and has on its under side a pin 168. A pawl 159 is also provided for locking the disk 161 in the position to which it has been moved, which pawl forms one end of a two-armed lever 157 pivoted at 158.

Now when the disk is to be moved farther is then operated by means of the eccentric 165 mounted on the shaft 4, and the push rod 164, so that thereby the disk 161 is turned through 90. The pin 168 of the pawl 166 thus comes behind the arm 160. Now if the pawl 159 be brought into engagement with the next recess or slot 162, in order to lock the disk 161, the arm 160 presses the pawl 166 outward by means of the pin 168, and it can move back, whereupon the operation recommences or is repeated.

At station IV the inner packet is finished, that is to say the bottom f is closed (Figs. 1, 24 and 14). The closing of the bottom is efiected by means of so-called bottom folders, which Work in pairs crosswise. First the upper and lower bottom folders 101 operate, said folders are carried by arms 102 and mounted on a vertical bar 103, and are constantly drawn by springs 109 against a cam 104, so that they move vertically in an opposite direction on the rotation of the cam 104. In order to operate the cam 104 revolubly mounted in a be ring 105, it is provided with a lever arm l06 and is controlled by a cam 108 mounted on the shaft 4, by the intermediary of a push rod 107. The two lateral folders which turn over the flaps 6 formed by the first folders are moved in a similar manner. .This is done by means of a cam 114 against which the folders 110 mounted on arms 111 bear by means of guide rollers 112. The arms 111 are here drawn by springs 118 against the cam 114, so that on the-rotation of the latter they approach one another or move apart respectively. The cam 114 is operated from the shaft 5 by means of a cam 117 which operates it by means of a rod 116 and a lever mounted on the shaft of the earn 114. After the bottom f is rod 120 of which acts on the rear end 121 of formed it is pressed down firmly by a pressing stamp. This is shown in side elevation in Fig. 8. The pressing stamp 143 of station VI is, shown inFi'g. 17. The inner packet isthus finished (Fig. 25), and then the second sheet b is wrapped around this packet .in exactly the same manner, For this object the shaft 57 is again'moved forward through 90, sothat the packet reaches stopping place V, where lthe'sheet b is placed as a tube around :the packet (Figs. 26 and 27 The packets then reach stopping place VI, by the'mo'ving forward of the shaft 57, where the outer sheet is completely folded into a packet, that is to say the sheet is closed in the same way-as hereinbefore described.

Now in order to have the longitudinal seam or fold d thoroughly pressed, a separate arrangement is provided at station VI,

in order to again press the longitudinal fold d (Figs. 15 and 16). For this object an arm 123 is provided, which is adapted to press against an arm 124 of the pressing die 87, and the lever 89. This arm 123 is operated from the shaft .6 bymeans of a cam 119, the

the arm 123, which turns on a pivot 122, which end is formed as a lever. This pressing of the longitudinal seam d is done by thedies during the whole turning. At the station VI the final pressing is very strong, and will be taken up by a special cam 119. The arm 123 first presses the die'87 down, and then raises it by lifting the arm 124, so that the bag may be removed from the mandrela The finished packet is nowremoved from the mandrel 56 (Fig. 17). For this object an ejector 132 isprovided, the rod 131 of which is provided with a bend (130), which moves in a circular channel 135 of a plate 134' fixed. on the table 3, when the mandrel 56 turns. Having-reached station VI, this b'end' 130 then passes into the claw-shaped head 129 of a lever 127-which 'pivotson a pin 128 of the machine frame 2 and is moved to and fro from the shaft 6, by means of aneccentric 125, and rod 126; I Thelever 127. has at its uppenend a slide piece 169, which travels in a s'lide bar 170, mounted on the table-top 3' by means of an angle piece 171, whereby the'lle'ver 127 is vsecurely guided. In its outward movement therefore it encounters the biottoin f of the finished packet and thereby draws it. away from the mandrel- 56. In 'this operation of drawing ofl' the packet, a pressing stamp 143 bears from the outside againstt a bottom f, so that thi s is retained between the ejector 132 andthe pressing stamp 143... The stamp 143is also mounted on a slide 144 which slides on a,

horizontal bar 145 and isoperated from-the r shaft 6 by means of the cam 137; This means for feedi 138, which lever turns on a pin 140 carried by an arm 141 of the machine frame 2. The

packet thereby comes to station VII (Figs.-

150 and thereby pushes the bar 152 mounted on a crosspiece 151, which carries the plate 153 forward, so that the packet now-comes into the trough 154 and slides automatically down the same, until it drops into a receptacle, that is to say reaches station VIII, whereby the work of the machine is finished.

Instead of making the packets of double a made with a single wrapper, and on the sheets, they may of course be equally iwell same machine, the start being then made 1 from station I.

It will be seen from Fig. 1, that the parts v of the stations I I", II, II, III and .V are duplicated, and the folding parts of stations IV, and VI. I V

I declare that what I claim is 1. In a machine for-automatically making packets open at one end, rotating folding mandrels, means for feeding sheets of paper lying in separate piles from two sides simulta-neously to said folding mandrels, said arately, comprising a past-ing ,apparatus having a pasting member with means for operating itto engage 'a sheet, and a carriage for conveying the sheets to the mandrels, folding devices which first fold from the first sheet the inner packet on one of the mandrels, then fold over this packet the secarately, comprising a pasting apparatus having a. pasting member withmeans for operating it to engage a'sheet, a carriage for.

conveying the sheets to the mandrels, fold-- ing devices 'which first foldfrom the first sheet the inner packet-on one of the man drels, then fold over this packet the second sheet for the outer packet, an ejector for ejecting the finished packet from the mandrel, said pasting member being arranged between the pile ofsheets andz -the carriage,

and a pasting roller over which the pasting member passes on its return to the sheet pile, and means for covering said roller during the outward passage of said member.

3. In a machine for automatically mak ing packets open at one end, rotating folding mandrels, means for feeding sheets of 95 the sheets Ofpaper Seppaper lying in separate piles from two sides simultaneously to said folding mandrels, said means for feeding the sheets of paper separately, comprising a pasting apparatus having a pasting member with means for operating it to engage a sheet, a carriage for conveying the sheets to the mandrels, folding devices which first fold from the first sheet the inner packet on one of the mandrels, then fold over this packet the second sheet for the outer packet, an ejector for ejecting the'finished packet from the mandrel, said pasting member being arranged between the pile of sheets and the carriage, and a past-ing roller over which the pasting member passes on its return to the sheet pile, and a bar arranged on an axis parallel to the pasting roller, and means for rocking said bar to cover the pasting roller during the outward passage of the pasting member.

4. In a machine for automatically making packets open at one end, rotating folding mandrels, means for feedingsheets of paper lying in separate piles from two sides simultaneously to said folding mandrels, said means for feeding the sheets of paper separately, comprising a past-ing apparatus having a pasting member with means for operating it to engage a sheet, a carriage for conveying the sheets to the mandrels, folding devices which first fold from the first sheet the inner packet on'one of the mandrels, then fold over this packet the second sheet for the outer packet, an ejector for ejecting the finished packet from the mandrel, and a rising folding'box, the folding devices being directly mounted thereon.

5. In a machine for automatically making packets open at one end, rotating folding mandrels, means for feeding sheets of paper lying in separate piles from two sides simultaneously to said folding mandrels,.

said means for feeding the sheets of paper separately, comprising a pasting apparatus having a pasting member with means for operating 1t to engage a sheet, a carria e for conveying the sheets to the mandre s, foldin devices which first fold from the first s eet the inner packeton one of the mandrels, then fold over this packet the sec ond sheet for the outer packet, an ejector for ejecting the finished packet from the mandrel, a rising folding box, the folding devices being irectly mounted thereon, and

means for causing the action of the folding devices only when the box is completely raised.

6. In a machine for automatically making packets open at one end, rotating folding mandrels, means for feeding sheets of paper lying in separate piles from two sides simultaneously to said folding mandrels, said means for feeding the sheets of paper separately comprising a pasting apparatus having a pasting member with means for operating it to engage a sheet, and a carriage for conveying the sheets to the mandrels, folding devices which first fold from the first sheet the inner packet on one of the mandrels, and then fold on this packet the second sheet for the outer packet, means for pressing down the longitudinal seam when the packet is finished, comprising a pressing stamp and an arm for operating the same, the movement of the arm being so timed that it presses the stamp firmly against the longitudinal seam before the fixed packet is drawn off, and afterward leaves it, and an ejector for ejecting the finished packet from the mandrel.

7. In a machine for automatically making packets open at one end, rotating folding mandrels, means for feeding sheets of paper lying in separate piles from two sides simultaneously to said folding mandrels, said means for feeding the sheets of paper separately comprising a pasting apparatus having a pasting member with means for operating it, to engage a sheet, and a car riage for conveying the sheets to the mandrels, folding devices which first fold from the first sheet the inner packet on one of the mandrels, and then fold on this packet the second sheet for the outer acket, and an ejector for removing the nished packet from the mandrel guided in the front end of the mandrel, and a member for operating the ejector, the rear end of the ejector pro jecting through a longitudinal slot in the mandrel and engaging the operating memher.

In testimony whereof I aflix, my signature, in presence of two witnesses.

OTTO HESSER.

Witnesses:

- JEAN GULDEN,

HEBMANN Horrn. 

